Chrysanthemum morifolium, one of the eight famous kinds of traditional Chinese medicine in Zhejiang Province, is a traditional agricultural medicinal plant widely used in China, Japan and Korea for pacifying living and improving eyesight. Modern pharmacological researches had also revealed that C. morifolium possessed the bioactivities of antianaphylaxis, antitumor, antimutagenesis and decompression, etc. 1-4 . A systematic chemical study of C. morifolium resulted in the isolation of two

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... ds, among, which one was a new flavonoid glycoside. Structural elucidation of the new compound was carried out through spectral methods and reported in this article. Herbal material: Dried plant of C. morifolium was purchased in Tongxiang city, Zhejiang Prov., China. Voucher specimen had been identified by pharmacognosist Zengxi Guo and also been kept under certain conditions for future identification. Melting point was carried out with the capillary tube method, without the calibration of temperature. NMR data were obtained by Bruker ARX-500. IR was carried out with Bruker IFS-55. High resolution MS was carried out with Bruker micrOTOFQ 125. All used reagents were of analytical grade and purchased from Hanbon Sci. and Tech Co. Ltd., (Huaian, Jiangshu Prov.). Isolation procedure: The dried powder of C. morifolium (500 g) was refluxed with 70 % EtOH for 1 h, then the extract was concentrated and suspended in H2O. After partition with